TABLE 1 — IGO total Mineral Resources on 31 December 2019/20

Year ending	Mining operation	Mass (Mt)	Grades				In situ metal
			Ni	Cu	Co	Au	Ni	Cu	Co	Au
			(%)	(%)	(%)	(g/t)	(kt)	(kt)	(kt)	(koz)
CY19	Nova (100%)	11.6	2.01	0.81	0.07	—	234	94	8	—
	Tropicana (30%)	38.6	—	—	—	1.70	—	—	—	2,106
	CY19 total	50.2	~ Grades are not additive ~				234	94	8	2,106
CY20	Nova (100%)	11.8	1.76	0.71	0.06	—	208	84	7	—
	Tropicana (30%)	43.5	—	—	—	1.64	—	—	—	2,292
	End of CY20 total	55.3	~ Grades are not additive ~				208	84	7	2,292
CY20/CY19	Nova (100%)	102%	87%	88%	87%	—	89%	89%	88%	—
% ratio	Tropicana (30%)	113%	—	—	—	96%	—	—	—	109%
	CY20/CY19	110%	~ Grades are not additive ~				89%	89%	88%	109%

 

TABLE 2 — IGO total Ore Reserves on 31 December 2019/20

Year ending	Mining operation	Mass (Mt)	Grades				In situ metal
			Ni	Cu	Co	Au	Ni	Cu	Co	Au
			(%)	(%)	(%)	(g/t)	(kt)	(kt)	(kt)	(koz)
CY19	Nova (100%)	9.5	1.85	0.78	0.07	—	177	74	6	—
	Tropicana (30%)	16.9	—	—	—	1.67	—	—	—	909
	CY19 total	26.4	~ Grades are not additive ~				177	74	6	909
CY20	Nova (100%)	9.0	1.82	0.77	0.07	—	163	69	6	—
	Tropicana (30%)	14.7	—	—	—	1.71	—	—	—	808
	End of CY19 total	23.7	~ Grades are not additive ~				163	69	6	808
CY20/CY19	Nova (100%)	94%	98%	99%	98%	—	92%	93%	92%	—
% ratio	Tropicana (30%)	98%	—	—	—	102%	—	—	—	89%
	CY20/CY19	90%	~ Grades are not additive ~				92%	93%	92%	89%